Fix build error, update CHANGELOG and README

Author: jessebraham

CHANGELOG.md

@@ -9,7 +9,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Added
 
-- Support for STM32F091 - @jessebraham
+- Support for stm32f0x1 line - @jessebraham
 - Support for HSE as a system clocksource (#25 - breaking change) - @zklapow
 
 ### Changed
@@ -66,7 +66,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 - Reworked GPIOs and added fully erased pins
 - Timer support
-- Support for STM32F070
+- Support for STM32F070 - @jessebraham
 - Additional peripheral support for STM32F030
 - Watchdog support
 

README.md

@@ -18,8 +18,11 @@ Supported Configurations
 ------------------------
 
 * __stm32f030__ (stm32f030x4, stm32f030x6, stm32f030x8, stm32f030xc)  
+* __stm32f031__  
 * __stm32f042__  
+* __stm32f051__  
 * __stm32f070__ (stm32f070x6, stm32f070xb)  
+* __stm32f071__  
 * __stm32f072__  
 * __stm32f091__  
 

src/spi.rs

@@ -49,6 +49,7 @@ use crate::stm32::SPI1;
 #[cfg(any(
     feature = "stm32f030x8",
     feature = "stm32f030xc",
+    feature = "stm32f051",
     feature = "stm32f070xb",
     feature = "stm32f071",
     feature = "stm32f091",